Lightweight aggregate and lightweight concrete and its application in the improvement of the thermal properties of volcanic lightweight aggregate concrete blocks from Canary Islands - Volcanic Rock Mechanics - page 85

2100

1900

REFERENCE MIXTURE
100%AEV 0-8 mm
90%CEM 10%APN 0-5 mm
90%CEM 10%APE 0-6 mm
+10%APE 0-6 mm
+20%APE 0-6 mm
+30%APE 0-6 mm
90%CEM 10%THER
80%CEM 20%THER
70%CEM 30%THER

2000

1800

1900

REFERENCE MIXTURE

1700

100%AEV 0-12 mm
(A/C=1,1)
100%AEV 0-12 mm
(A/C=1,2)
100%AEV 0-8 mm

1800

1700

1600

1600

1500

90%CEM,10%APN 0-5 mm

1500

+10%APE 0-6 mm

1400

1400

1300

1300

1200

1200 FRESH 4-5 DAYS

Nº DAYS

7 DAYS 28 DAYS

FRESH 4-5 DAYS 7 DAYS 28 DAYS

Nº DAYS

Figure 1. Density tests results in the batches produced
by weight in 4 × 4 × 16 cm specimens. Figure 3. Density tests results in the batches produced

by volume in 4 × 4 × 16 cm specimens.

2100

2000

1900

REFERENCE MIXTURE

1900

REFERENCE MIXTURE
100%AEV 0-8 mm
90%CEM 10%APN 0-5 mm
90%CEM 10%APE 0-6 mm
+10%APE 0-6 mm
+20%APE 0-6 mm
+30%APE 0-6 mm
90%CEM 10%THER
80%CEM 20%THER
70%CEM 30%THER

100%AEV 0-12 mm
(A/C=1,1)
100%AEV 0-12 mm
(A/C=1,2)
100%AEV 0-8 mm

1800

1800

1700

1700

1600

1600

90%CEM,10%APN 0-5 mm

1500

+10%APE 0-6 mm

1500

1400

1300

1400

1200

1300 FRESH 4-5 DAYS 7 DAYS 28 DAYS

Nº DAYS

1200

FRESH 4-5 DAYS 7 DAYS 28 DAYS

Figure 2. Density tests results in the batches produced
by weight in 30 × 30 × 5 cm specimens.

Nº DAYS

Figure 4. Density tests results in the batches produced
by volume in 30 × 30 × 5 cm specimens.

tion coefficient decreases as the density increases.
on the whole, for the 4 × 4 × 16 cm specimens
greater values were registered as compared to the
30 × 30 × 5 cm specimens.
in the batches by volume ( Fig. 7 ) , the stand-
ard Batch 100%aeV 0-12 mm has a slightly
lower absorption coefficient than the 100%aeV
0-8 mm. Therefore, it can be concluded that the
aeV 0-8 mm does not improve the capillary water
absorption coefficient.
in the 30 × 30 × 5 cm specimens ( Fig. 8 ) the
addition of aPe 0-6 mm results in a reduction
of the absorption coefficient of up to 25% in the
+30%aPe 0-6 mm. on the other hand, the grad-
ual replacement of the cement with Thermocal TM
results in a reduction of the absorption coefficient
of 87% for the 70%ceM 30%TheR batch.

4,00

3,00

2,00

1,00

0,00

ABSORPTION COEFF.
PARAMETERS

DENSITY 28 DAYS (kg/dm 3 )

REFERENCE MIXTURE 100%AEV 0-12 mm (A/C=1,2)

100%AEV 0-12 mm (A/C=1,1) 100%AEV 0-8 mm

90%CEM,10%APN 0-5 mm

+10%APE 0-6 mm

Figure 5. absorption coefficient ratio—Density ratio in
28 days in batches by weight (4 × 4 × 16 cm specimens).